5-42. REAR TANDEM AXLE AND DIFFERENTIAL-Continued
(e) To move the contact patterns between the top and bottom of the gear teeth it is necessary to
change the thickness of the shim pack (27) under the bearing cage (28).
Remove eight screws (23) and washers (24) and remove the bearing cage from the carrier
(g) Remove and install bearing cage (28) (see step d. (15)) and add or remove shims and install
bearing cage (28) on differential case assembly (37).
(h) To correct the high pattern decrease the thickness of the shim pack under the bearing cage. The
drive pinion will move toward the ring gear (18). To correct the low pattern increase the
thickness of the shim pack (27) under the bearing cage (28). The drive pinion will move away
from the ring gear (18).
Install bearing cage on differential (see step d. (15)) and again check tooth patterns.
Continue in this manner until tooth patterns are correct.
Adjust ring gear backlash after adjusting tooth contact patterns.
(a) Adjust backlash of ring gear (see step d. (39)) above.
(b) After tooth contact patterns and backlash has been adjusted to specifications, lock adjusting rings